Murex Transarc 250, Instruction Manual And Spare Parts List

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8.1.1 Hidden functions
There is one hidden function in the control panel.
To access the functions hold button depressed for 5 seconds. The display
shows a letter and a value. The correct function is selected by pressing the buttons.
The knob is used to change the value of the selected function.
Function letter Function
d Drop welding
To leave the function hold the button depressed for 5 seconds.
Drop welding
Drop welding can be used when welding with stainless electrodes. The function
involves alternately striking and extinguishing the arc in order to achieve better
control of the supply of heat. The electrode needs only to be raised slightly to
extinguish the arc.
9 TIG WELDING
At TIG--welding complete the power source with:
S
a TIG torch with gas valve
S
an argon gas tube
S
an argon gas regulator
S
tungsten electrode
9.1 Symbol and function explantions
TIG welding
TIG welding melts the metal of the workpiece, using an arc struck from a tungsten elec-
trode, which does not melt itself. The weld pool and the electrode are protected by
shielding gas.
”LiveTig start”
With “LiveTig start” the arc strikes when the tungsten electrode is brought into
contact with the workpiece and then lifted away from it.
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